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%I A209836 #11 Aug 11 2015 15:44:04
%S A209836 1,5,25,105,405,1425,4665,14265,41100,112140,291360,723960,1727310,
%T A209836 3970770,8822010,18993870,39724500,80877480,160602600,311585340,
%U A209836 591523950,1100383470,2008360650,3600512850,6346983390,11012013186,18821052030,31713870610,52723656830
%N A209836 The number of 5 x 5 matrices of nonnegative integers such that the sum of the entries in the i-th row equals the sum of the i-th column for each i and the total sum equals n.
%K A209836 nonn
%O A209836 0,2
%A A209836 _Kazunori Nakamoto_, _Shingo Okuyama_, Mar 14 2012

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